Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoi danh co snippets" » "hop danh co snippets", "hoi dan co snippets", "hoc danh co snippets", "hoi danh cho snippets", "hoi doanh co snippets", "hoi anh co snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("hoi danh co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoi danh co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoi danh co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi danh co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.